Evaluation of Inner Mongolia Highway Traffic Sustainable Development Based on PCA-DEA Model

Based on the designed evaluation index system of the Inner Mongolia highway traffic sustainable development, this paper used PCA-DEA composite evaluation model to evaluate the Inner Mongolia highway traffic sustainable development by using SPSS and Excel software. The results show that the DEA are effective in 2007 and 2009, and the DEA are not effective in the rest of the ten years but it increases returns to scale in these years, which indicates that increasing inputs can get more outputs. The technologies in 2007, 2008 and 2009 are effective, which shows that Inner Mongolia autonomous region has paid attention to the technology development and utilization in highway construction in recent years. It is clear that Inner Mongolia highway traffic is towards the direction of the sustainable development.